Water heater



1937- R. P. KEILBAUGH I 2,069,452

WATER HEATER Original Filed March 29, 1934 2 SheetsShe et 1 Z7 .Jizj- Z Invenfor fl Home y Patented Feb. 2, 1937 UNITED STATES PATENT OFFICE Application March 29, 1934, Serial No. 718,076 Renewed March 31, 1936 4 Claims.

The present invention relates to new and useful improvements in water heaters and has for some of its objects to provide a device of this character which will be comparatively simple in construction, strong, durable, highly eflicient and reliable in use, compact and which may be manufactured at low cost.

Another important object of the invention is to provide a water heater including a boiler having mounted therein a novel construction of heat distributor.

Still another important object of the invention is to provide a water heater of the character described including novel means for mounting the boiler on a gas burner or the like.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specifica tion, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure l is a view in side elevation of a water heater constructed in accordance with the present invention with the outer jacket or casing omitted.

Figure 2 is a top plan view thereof.

Figure 3 is a view in vertical section through the invention.

Figure 4 is a detail View in vertical section, taken substantially on the line 'I-1 of Figure 3.

Referring now to the drawings in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a boiler which is designated generally by the reference numeral I, said boiler including spaced inner and outer walls 2 and 3, respectively, the former being longitudinally corrugated, as illustrated in Figure 3 of the drawings. The inner and outer walls 2 and 3 of the boiler I are tapered from bottom to top. A bottom 4 extends between the lower ends of the inner and outer walls 2 and 3. The inner wall 2 is provided with a top 5 and the outer wall 3 is provided with a top 6. It will thus be seen that a water chamber 1 is provided while the inner wall 2 of the boiler defines a heat chamber 8, the side wall of which is corrugated to provide increased heating area and strength; the corrugations being upright. A draft passage 9 extends between the tops 5 and 6 of the walls 2 and 3. The said draft passage or upright is comparatively small and is centrally arranged with the result that an upper water chamber is afforded communicating with the upper end of the jacket or water chamber I and extending inwardly from the upper end thereof.

Projecting from diametrically opposite sides of the lower portion of the boiler I are integral inlet bosses I and H to which water pipes I2 and I3 are connected. The reference numerals I 4 and I5 designate water outlet bosses which project from diametrically opposite sides of the upper portion of the boiler I and to which water pipes I6 and H are connected. As will be gathered from the drawings the said water outlet means is in the same horizontal plane as the water chamber about the uptake 9. Rings I8 are secured on the bosses I0 and II by set screws I9 and depending from said rings are supporting legs 23 which are secured to the plate 2| of a gas burner 22 by screws 23. It will thus be seen that the boiler I is supported in spaced relation to the burner 22. Enclosing the boiler I in spaced relation thereto is a jacket or casing 24 the top 25 of which is provided with an outlet passage 26 for connection with a flue. It may be well to here state that the jacket or casing 24 is preferably of cast iron while the boiler is preferably of aluminum cast in one piece.

Mounted on the top 6 of the boiler I and traversing the draft passage 9 is a bar 21 having an opening 28 therein which accommodates a rod 29. A cotter pin 30 retains the rod 29 in the bar 21. The rod 29 extends downwardly through the draft opening 9 into the heat chamber 8 and mounted thereon in said heat chamber is a substantially cup-shaped heat distributor 3|. Fingers 32 project from the distributor 3| and engage the inner wall 2 of the boiler for maintaining said distributor in spaced relation to said inner wall 2.

It is believed that the operation of the heater will be readily apparent. The construction and arrangement is such that heat from the burner 22 passes upwardly between the outer jacket or casing 24 and the boiler I as well as upwardly through the chamber 8 from which it escapes through the passage 9. The distributor 3| directs the heat in the chamber 8 outwardly against the inner wall 2 of the boiler and causes said heat to travel closely adjacent thereto in its upward travel.

If desired, the boss Ill may be connected with the bottom of a hot water storage tank, the boss I4 may be connected with the top of said tank, and the bosses I I and I5 may be plugged, this constituting one way in which the device may be used. Or, instead of plugging or closing the bosses I and I5, the boss Il may be connected to the inlet of a radiator and the boss I5 connected with the return from said radiator thus providing a combination water heater and radiator heater. Obviously, the device may be used for any purpose for which it may be found adapted or desirable.

As will be appreciated by reference to Figure 3, the bosses I 4 and I5 rest in the casing 24 for the better support and positioning of the boiler I, also, that the upward taper of the water jacket surrounding the wall 2 characterized by upright corrugations is materially advantageous inasmuch as it cuts down the volume of water about the upper portion of the corrugated wall 2 so that said water is thoroughly heated by the hot products of combustion in the upright corrugations of said wall 2.

It is believed that the many advantages of a water heater constructed in accordance with the present invention will be readily understood, and although a preferred embodiment of the invention is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:-

1. In a water heater of the class described comprising a boiler, integral bosses projecting from the lower portion of the boiler on opposite sides thereof for connection with water pipes, means for securing the boiler on a burner having laterally disposed side portions, said means including rings encircling each of said bosses, set screws for securingthe rings to said bosses, supporting legs depending from the rings and being connected to the lateral flanges of said burner.

2. A water heater comprising a combustion chamber open at its bottom and formed by an upright wall with upright corrugations, said chamber having a central comparatively small uptake in communication with its upper end, a water jacket surrounding said wall of said combustion chamber and tapered upwardly and formed by a wall surrounding the corrugated wall in spaced relation thereto, an upper water chamber formed by said uptake, said surrounding wall and a top wall, communicating with the upper end of said jacket and extending inwardly therefrom and immediately surrounding said uptake, means for supplying cold water to the lower portion of the water jacket, and means for conducting heated water from the said upper water chamber.

3. A water heater comprising a combustion chamber open at its bottom and formed by an upright wall with upright corrugations, said chamber having a central comparatively small uptake in communication with its upper end, a water jacket surrounding said wall of said combustion chamber and tapered upwardly and formed by a wall surrounding the corrugated wall in spaced relation thereto, an upper water chamber communicating with the upper end of said jacket and extending inwardly therefrom and immediately surrounding said uptake; the said heater being provided with opposite interiorly threaded openings in communication with the lower end portion of the water jacket, and being also provided with opposite openings in the same horizontal plane as and in communication with the upper water chamber.

4. A water heater comprising a combustion chamber open at its bottom and formed by an upright wall with upright corrugations, said chamber having a central comparatively small uptake in communication with its upper end, a I

water jacket surrounding said wall of said combustion chamber and tapered upwardly and formed by a wall surrounding the corrugated wall in spaced relation thereto, an upper water chamber formed by said uptake, said surrounding wall and a top wall, communicating with the upper end of said jacket and extending inwardly therefrom and immediately surrounding said uptake, means for supplying cold water to the lower portion of the water jacket, and diametrically opposite lateral bosses on the upper portion of the wall that surrounds the corrugated wall and communicating with the upper Water chamber and adapted to serve the purposes specified.

ROBERT P. KEILBAUGH. 

